单项选择题

The scientists were ________ as they had found not one but three viruses.

A．advanced
B．excited
C．amazing
D．repenting
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单项选择题
The tour of our country by the foreign visitors ________ on the workings of democracy.
A．confirmed
B．focused
C．instructed
D．hampered
单项选择题
The application of the unemployed workers ________ the post is being carefully considered.
A．to
B．for
C．for
D．in
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